AH, I didn't realize the PM was between your friend and the Admin/Mod. Keeping in mind I'm only hearing one side of this & have no reason to believe one person's word over another, I'd say your friend should never trust that person again. Beyond that, I don't know if your friend has any legal recourse. If it were me, I'd start by looking over forumotion's terms of service...
http://www.forumotion.com/en/c...terms-of-service.htm